Pith Number

pith:IZHRP25T

pith:2025:IZHRP25TWKTDLBUY7X3C3TOSBX

not attested not anchored not stored refs pending

Excluding a rectangular grid

Cl\'ement Rambaud

arxiv:2501.11617 v1 · 2025-01-20 · math.CO · cs.DM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IZHRP25TWKTDLBUY7X3C3TOSBX}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T10:03:11.586958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

464f17ebb3b2a6358698fdf62dcdd20dd5832041103a802370bd7ee1c87855d2

Aliases

arxiv: 2501.11617 · arxiv_version: 2501.11617v1 · doi: 10.48550/arxiv.2501.11617 · pith_short_12: IZHRP25TWKTD · pith_short_16: IZHRP25TWKTDLBUY · pith_short_8: IZHRP25T

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/IZHRP25TWKTDLBUY7X3C3TOSBX \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 464f17ebb3b2a6358698fdf62dcdd20dd5832041103a802370bd7ee1c87855d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4250f1e2830a842f1ff7da00cdea9e2273be53155b560e0006a022c838c7686",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-01-20T17:29:53Z",
    "title_canon_sha256": "8a0a14c013705d96c5d1ae60f96dd2e9a2ef4295d62bc1a7a9d9ed8fad20f5a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.11617",
    "kind": "arxiv",
    "version": 1
  }
}